Patents by Inventor Shun-Tai Chen
Shun-Tai Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240171713Abstract: An illumination system that provides an illumination beam is provided. The illumination system includes a first light source module, a second light source module, a third light source module, a first optical element, a second optical element, and a third optical element. The first light source module and the second light source module provide a first color light beam, a second color light beam, and a third color light beam. The third light source module provides a third color light beam. The first optical element, the second optical element and the third optical element are disposed on transmission paths of the first color light beam, the second color light beam and the third color light beam, and the first light source module and the second light source module are respectively located on opposite sides of the first optical element and the second optical element.Type: ApplicationFiled: November 9, 2023Publication date: May 23, 2024Applicant: Coretronic CorporationInventors: Kuan-Lun Chen, Kai-Jiun Wang, Ming-Tsung Weng, Shun-Tai Chen
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Patent number: 11886102Abstract: An illumination system, configured to provide an illumination beam, is provided. The illumination system includes a first excitation light source, a wavelength conversion element, and a controller. The first excitation light source is configured to provide a first excitation beam. The wavelength conversion element is located on a transmission path of the first excitation beam. The wavelength conversion element includes multiple wavelength conversion regions and multiple non-wavelength conversion regions. The controller controls whether the first excitation light source emits light. During a first time interval, the controller turns off the first excitation light source. During a second time interval, the controller controls the first excitation light source to emit light. The first excitation beam is transmitted to one of the wavelength conversion regions to form a converted beam. The illumination beam includes the converted beam. Another illumination system and multiple projection devices are also provided.Type: GrantFiled: April 15, 2021Date of Patent: January 30, 2024Assignee: Coretronic CorporationInventors: Chi-Tang Hsieh, Chih-Hsien Tsai, Mei-Chun Shih, Wei-Chen Hsiao, Shun-Tai Chen
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Patent number: 11711499Abstract: A projection system and a projection method are provided. The projection system includes a projection device, a streaming device, and a control device. The projection device includes a first image input port and a second image input port. The streaming device is electrically connected to the first image input port of the projection device and is coupled to the projection device in a detachable manner. The control device is communicatively connected to the streaming device. The control device transmits a first command signal to the streaming device, so that the projection device projects image data from the streaming device. The projection method may be executed by the projection system. The projection system and the projection method of the disclosure provide a user with more convenient operation environment and operation interface.Type: GrantFiled: March 17, 2021Date of Patent: July 25, 2023Assignee: CORETRONIC CORPORATIONInventors: Shun-Tai Chen, Chen Hsiang Shih, Chen-Yi Hong, Yu-Sheng Lee
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Patent number: 11369014Abstract: The invention relates to a light beam generating device and method, and a projection device. The light beam generating device is configured to receive a color control signal and generate a target light beam having a target color, and includes a plurality of drivers, a current signal generating circuit, and a control circuit. The drivers respectively drive a plurality of light-emitting elements according to a plurality of current signals, wherein the plurality of light-emitting elements collectively generate the target light beam. The current signal generating circuit is coupled to the drivers and generates the plurality of current signals according to the color control signal corresponding to the target color. The control circuit is coupled to the drivers and controls whether each driver is enabled according to the color control signal.Type: GrantFiled: February 3, 2021Date of Patent: June 21, 2022Assignee: Coretronic CorporationInventors: Wen-Hsin Chang, Chung-Lin Ke, Shun-Tai Chen, Tung-Yi Lu
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Patent number: 11323668Abstract: A projection device and a controlling method of the projection device are provided. The projection device includes a light emitting module, a driver, a light valve, a projection lens and a processor. The light emitting module generates a light beam according to a driving current respectively. The driver generates the driving current and transmit the driving current to the light emitting module according to an operating signal. The light valve receives the light beam to form an image light beam. The projection lens projects the image light beam. The processor provides the operating signal with a default period to the driver and provides an operation of the light valve. According to the operating signal or the operation of the light valve, the driver generates the driving current lower than a default current during a first time interval in the default period.Type: GrantFiled: March 30, 2020Date of Patent: May 3, 2022Assignee: Coretronic CorporationInventors: Wen-Hsin Chang, Shun-Tai Chen, Tung-Yi Lu, Chen-Yi Hong
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Patent number: 11317487Abstract: A driving device is provided. The driving device includes a signal processing circuit and a driving circuit. The signal processing circuit is configured to generate a current input signal according to a target current signal. The driving circuit is configured to receive the current input signal and generate a current output signal according to the current input signal to drive a light emitting element. In a first time interval, the current input signal gradually rises from a first current value to a target current value in a continuous or segmented manner according to a rising slope. Further, a control method of the driving device and a lighting system including the driving device are also provided.Type: GrantFiled: April 29, 2021Date of Patent: April 26, 2022Assignee: Coretronic CorporationInventors: Wen-Hsin Chang, Shun-Tai Chen, Chung-Lin Ke, Yi-Yuan Peng
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Publication number: 20220022297Abstract: The invention relates to a light beam generating device and method, and a projection device. The light beam generating device is configured to receive a color control signal and generate a target light beam having a target color, and includes a plurality of drivers, a current signal generating circuit, and a control circuit. The drivers respectively drive a plurality of light-emitting elements according to a plurality of current signals, wherein the plurality of light-emitting elements collectively generate the target light beam. The current signal generating circuit is coupled to the drivers and generates the plurality of current signals according to the color control signal corresponding to the target color. The control circuit is coupled to the drivers and controls whether each driver is enabled according to the color control signal.Type: ApplicationFiled: February 3, 2021Publication date: January 20, 2022Applicant: Coretronic CorporationInventors: Wen-Hsin Chang, Chung-Lin Ke, Shun-Tai Chen, Tung-Yi Lu
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Publication number: 20210405515Abstract: An illumination system, configured to provide an illumination beam, is provided. The illumination system includes a first excitation light source, a wavelength conversion element, and a controller. The first excitation light source is configured to provide a first excitation beam. The wavelength conversion element is located on a transmission path of the first excitation beam. The wavelength conversion element includes multiple wavelength conversion regions and multiple non-wavelength conversion regions. The controller controls whether the first excitation light source emits light. During a first time interval, the controller turns off the first excitation light source. During a second time interval, the controller controls the first excitation light source to emit light. The first excitation beam is transmitted to one of the wavelength conversion regions to form a converted beam. The illumination beam includes the converted beam. Another illumination system and multiple projection devices are also provided.Type: ApplicationFiled: April 15, 2021Publication date: December 30, 2021Applicant: Coretronic CorporationInventors: Chi-Tang Hsieh, Chih-Hsien Tsai, Mei-Chun Shih, Wei-Chen Hsiao, Shun-Tai Chen
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Publication number: 20210297642Abstract: A projection system and a projection method are provided. The projection system includes a projection device, a streaming device, and a control device. The projection device includes a first image input port and a second image input port. The streaming device is electrically connected to the first image input port of the projection device and is coupled to the projection device in a detachable manner. The control device is communicatively connected to the streaming device. The control device transmits a first command signal to the streaming device, so that the projection device projects image data from the streaming device. The projection method may be executed by the projection system. The projection system and the projection method of the disclosure provide a user with more convenient operation environment and operation interface.Type: ApplicationFiled: March 17, 2021Publication date: September 23, 2021Applicant: Coretronic CorporationInventors: Shun-Tai Chen, Chen Hsiang Shih, Chen-Yi Hong, Yu-Sheng Lee
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Patent number: 11022864Abstract: A projection system and a control method of a driving current thereof are provided. A power supply of an illumination module provides the driving current to drive a light source to provide an illumination beam. A filter wheel receives the illumination beam and filtered beams are generated. The illumination beam passes through the filter wheel during a first period and a first filtered beam is generated. The illumination beam passes through the filter wheel during a second period and a second filtered beam is generated. The filtered beams include the first filtered beam, the second filtered beam, and an intermediate filtered beam generated during an intermediate period between the first and second periods. A control device controls the power supply to continuously provide the driving current from the first period, through the intermediate period, to the second period.Type: GrantFiled: November 13, 2019Date of Patent: June 1, 2021Assignee: Coretronic CorporationInventors: Shun-Tai Chen, Chung-Lin Ke, Shang-Ko Mao
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Publication number: 20210092332Abstract: A projection device and a controlling method of the projection device are provided. The projection device includes a light emitting module, a driver, a light valve, a projection lens and a processor. The light emitting module generates a light beam according to a driving current respectively. The driver generates the driving current and transmit the driving current to the light emitting module according to an operating signal. The light valve receives the light beam to form an image light beam. The projection lens projects the image light beam. The processor provides the operating signal with a default period to the driver and provides an operating of the light valve. According to the operating signal or the operating of the light valve, the driver generates the driving current lower than a default current during a first time interval in the default period.Type: ApplicationFiled: March 30, 2020Publication date: March 25, 2021Applicant: Coretronic CorporationInventors: Wen-Hsin Chang, Shun-Tai Chen, Tung-Yi Lu, Chen-Yi Hong
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Patent number: 10921696Abstract: An illumination system including a first excitation light source, a wavelength conversion wheel, and a filter wheel is provided. The first excitation light source is configured to emit a first excitation beam. The wavelength conversion wheel includes a wavelength conversion region and a first optical region. The wavelength conversion region and the first optical region alternately enter a transmission path of the first excitation beam. The first excitation beam is converted into a conversion beam by the wavelength conversion region when the wavelength conversion region enters the transmission path of the first excitation beam. The filter wheel includes a first region, a second region, and a blocking region. An angle covered by the second region in a circumferential direction is smaller than an angle covered by the first optical region. A projection apparatus is also provided.Type: GrantFiled: August 29, 2019Date of Patent: February 16, 2021Assignee: Coretronic CorporationInventors: Shun-Tai Chen, Shu-Yu Lin, Ming-Tsung Weng, Chen-Yi Hong, Chen-Wei Fan
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Publication number: 20200166827Abstract: A projection system and a control method of a driving current thereof are provided. A power supply of an illumination module provides the driving current to drive a light source to provide an illumination beam. A filter wheel receives the illumination beam and filtered beams are generated. The illumination beam passes through the filter wheel during a first period and a first filtered beam is generated. The illumination beam passes through the filter wheel during a second period and a second filtered beam is generated. The filtered beams include the first filtered beam, the second filtered beam, and an intermediate filtered beam generated during an intermediate period between the first and second periods. A control device controls the power supply to continuously provide the driving current from the first period, through the intermediate period, to the second period.Type: ApplicationFiled: November 13, 2019Publication date: May 28, 2020Applicant: Coretronic CorporationInventors: Shun-Tai Chen, Chung-Lin Ke, Shang-Ko Mao
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Publication number: 20200099901Abstract: A projection device and a light source module thereof and a method for synchronizing a wavelength conversion wheel and a filter wheel are provided. A rotation state of the wavelength conversion wheel and a rotation state of the filter wheel are detected to generate a first position signal and a second position signal, respectively. A control unit is used to control one of the wavelength conversion wheel and the filter wheel to rotate. A micro control unit is used to control the other one of the wavelength conversion wheel and the filter wheel to rotate according to the first position signal and the second position signal, so that the wavelength conversion wheel and the filter wheel rotate synchronously. The disclosure enables the wavelength conversion wheel and the filter wheel to synchronize in the circumstances where the control unit only supports controlling of one wavelength conversion wheel or filter wheel.Type: ApplicationFiled: September 23, 2019Publication date: March 26, 2020Applicant: Coretronic CorporationInventors: Tung-Yi Lu, Shun-Tai Chen, Chen-Yi Hong, Wen-Hsin Chang
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Publication number: 20200073219Abstract: An illumination system including a first excitation light source, a wavelength conversion wheel, and a filter wheel is provided. The first excitation light source is configured to emit a first excitation beam. The wavelength conversion wheel includes a wavelength conversion region and a first optical region. The wavelength conversion region and the first optical region alternately enter a transmission path of the first excitation beam. The first excitation beam is converted into a conversion beam by the wavelength conversion region when the wavelength conversion region enters the transmission path of the first excitation beam. The filter wheel includes a first region, a second region, and a blocking region. An angle covered by the second region in a circumferential direction is smaller than an angle covered by the first optical region. A projection apparatus is also provided.Type: ApplicationFiled: August 29, 2019Publication date: March 5, 2020Applicant: Coretronic CorporationInventors: Shun-Tai Chen, Shu-Yu Lin, Ming-Tsung Weng, Chen-Yi Hong, Chen-Wei Fan
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Patent number: 9268205Abstract: A projector and a light source controlling method thereof are provided. The light source controlling method includes the following steps. The light source module is controlled to adjust a luminance of a projection light generated by a light source module starting from a low luminance. A power source voltage from an electronic device is detected to be equal to a threshold voltage or not. A power of the power source voltage is detected to be equal to a threshold power or not. When the power source voltage is equal to the threshold voltage and the power of the power source voltage is less than or equal to the threshold power, or when the power source voltage is greater than or equal to the threshold voltage and the power of the power source voltage is equal to the threshold power, the adjustment of the luminance of the projection light is stopped.Type: GrantFiled: June 29, 2012Date of Patent: February 23, 2016Assignee: Coretronic CorporationInventors: Shun-Tai Chen, Chih-Neng Tseng
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Publication number: 20150237319Abstract: A projection system and a projection method thereof are provided. A plurality of image source signals is combined into a combination image signal. A host is instructed to provide a plurality of the projection ratios corresponding to the image source signals according to extended display identification data. An image source signal combination unit combines the projection ratios corresponding to the image source signals to form a combination projection ratio corresponding to the combination image signal. A light valve is set to a mode corresponding to the combination projection ratio. The illumination beam is converted to an image beam according to the combination image signal.Type: ApplicationFiled: October 22, 2014Publication date: August 20, 2015Applicant: CORETRONIC CORPORATIONInventors: Wen-Wei Tsai, Tung-Yi Lu, Chun-Chin Chang, Shun-Tai Chen, Kun-Liang Jao
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Publication number: 20150237292Abstract: A projection system and a projection method thereof are provided. An illumination beam is outputted through a light-uniforming element which an aspect ratio of a light emitting terminal conforms to an ultrawide projection ratio. A host is instructed by an extended display identification data to provide an image signal corresponding to the ultrawide projection ratio. A light valve is configured to a mode corresponding to the ultrawide projection ratio. The light valve is controlled to convert the illumination beam into an image beam according to the image signal.Type: ApplicationFiled: October 9, 2014Publication date: August 20, 2015Applicant: CORETRONIC CORPORATIONInventors: Wen-Wei Tsai, Tung-Yi Lu, Chun-Chin Chang, Shun-Tai Chen, Kun-Liang Jao
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Publication number: 20130083299Abstract: A projector and a light source controlling method thereof are provided. The light source controlling method includes the following steps. The light source module is controlled to adjust a luminance of a projection light generated by a light source module starting from a low luminance. A power source voltage from an electronic device is detected to be equal to a threshold voltage or not. A power of the power source voltage is detected to be equal to a threshold power or not. When the power source voltage is equal to the threshold voltage and the power of the power source voltage is less than or equal to the threshold power, or when the power source voltage is greater than or equal to the threshold voltage and the power of the power source voltage is equal to the threshold power, the adjustment of the luminance of the projection light is stopped.Type: ApplicationFiled: June 29, 2012Publication date: April 4, 2013Applicant: CORETRONIC CORPORATIONInventors: Shun-Tai Chen, Chih-Neng Tseng